*SUPPORT*
IN: wif tufa gazzer lug dax OUT: YELLOW GREEN PURPLE
IN: gazzer tufa zup OUT: PINK GREEN
IN: gazzer lug dax OUT: YELLOW GREEN
IN: wif OUT: PURPLE
IN: dax fep zup OUT: YELLOW YELLOW PINK
IN: zup zup tufa zup lug wif OUT: PURPLE PINK PINK PINK
IN: zup tufa gazzer lug zup OUT: PINK GREEN PINK
IN: gazzer tufa dax OUT: YELLOW GREEN
IN: dax fep gazzer OUT: YELLOW YELLOW GREEN
IN: zup OUT: PINK
IN: gazzer fep dax OUT: GREEN GREEN YELLOW
IN: wif dax fep gazzer lug wif OUT: PURPLE PURPLE YELLOW YELLOW GREEN
IN: dax lug gazzer OUT: GREEN YELLOW
IN: gazzer OUT: GREEN

*QUERY*
IN: zup dax wif lug dax OUT: YELLOW PINK YELLOW PURPLE
IN: wif lug dax OUT: YELLOW PURPLE
IN: dax zup lug gazzer OUT: GREEN YELLOW PINK
IN: dax fep zup lug dax OUT: YELLOW YELLOW YELLOW PINK
IN: wif tufa wif OUT: PURPLE PURPLE
IN: wif tufa gazzer OUT: GREEN PURPLE
IN: gazzer zup OUT: GREEN PINK
IN: gazzer fep wif OUT: GREEN GREEN PURPLE
IN: dax tufa gazzer OUT: GREEN YELLOW
IN: zup tufa wif OUT: PURPLE PINK

*GRAMMAR*
dax -> YELLOW 
 zup -> PINK 
 wif -> PURPLE 
 gazzer -> GREEN 
 x1 lug u1 -> [u1] [x1] 
 u1 tufa u2 -> [u2] [u1] 
 u1 fep u2 -> [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 